Mining machine



Oct. l 11'1927 R.c.ossoon MINING MAGHINE Original Filed March 15. 1919'4 Sheets-Shegt 1 M. Q la. .y DE b RRQ mw Q. SMH@ j mau/ n 3m o Y@ s*.HWDN f I w .\\\\\\\\M\\\\\\\\\\\\\ f w ,wlw nm. N dmay. w w 1% ma A\\l.|. :E mm ,1 w www mk.. mn? 1%.... 1 im... m m L r, \`o n n 4 n: E .aHmrHf/cm www Oct- 11 f 1927' n. c. oscoon MINING MACHINE Original FiledMarch 15. 1919 4 Sheets-Sheet 2 Oct. 11 1927.

R. c. osGooD MINING MACHINE Original Filed March l5, 1919 4 Sheets-Sheet3 oct. "11, 1927. 1,644,943

R. C. OSGOOD MINING MACHINE original Filed Maron 15. 1919 4 sheets-sheet4 Har-.2'

5J Inv/@iwi r Rab ric. ".f a d. y. by

Patented Oct. 11,1927.

UNITED STATES PATENT OFFICE. :t

ROBERT G. 0830017, I CLABEIOHT, NEW HAMPSHIRE, LSSIGNOR T0 IA- OBINEBY00mm, A CORPORATION 0F MASSACHUSETTS.

m6 IACHDIE.

Application nled Inch 16, 191B, Serial No. 282,851. Renewed Septemberlll, Il.

My invention relates to mining machines. It has for its ab'ect to rovidean improved mining mac ine w ich, while not limited thereto, isespecially adapted to use l in entry driving. A further object of myinvention is to provide an improved mining machine wherein the' materialto be mined is progressively cut in an impro manner 1n advance of themachine, preferably through the use of an improved cutter chain carriinghead, the face of the entry in entry wor for example, being rapidly cutover its entire surface as the machine moves forward. A still furtherobject of my invention is to 1B provide an improved cutting mechanismand improved cooperating driving and feeding mechanism therefor, whichis of a simple, rugged, yet light .construction and adapted to rapidwork -and to be handled withmcreased facility during the miningoperation. These and other objects and advantages of my improvedconstruction will, however, hereinafter more fully appear.

In, the accompanying drawings I have shown for purposes of illustrationtwo embodiments which my invention may assume in iractice.

Fig. 1 is a side elevation showing one embodiment of my invention in usein an entry,

parts being broken away.

Fig. 2 is a plan view of the machine. Fig. 3 is an end elevation of themachine when disposed as shown in Fig. 1..

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 1. f

Fig. 5 is a longitudinal sectional view taken on line 5-5 of Fig. 1.

Fig. 6 is a diagrammatic view showing the means for moving the truckforward.

Fig. 7 is a diagrammatic view showing one means of enlarging the entryformed by this form of my invention.

Fig. 8 is a agmentar lan view, partially in section, of a in i ed formof my invention.

Fig. 9 is an end elevation of the construction shown in Fig. 8.

Iii this illustrative construction it will be observed that I have showna minin machine frame 41 slidabl mounted longitudinally on a horizonte-ly disposed suport, herein in the form of a flanged guiding means 2formed on longitudinally dis- 5 posed opstanding I-beam members 3, whichare in turn supported upon wheels 4 and connected in such a manner as toform a truck, the ends of which herein extend beyondhi whelilzls. Asshown, the frame 1 is provi e wit cooperating ide ila 5 and 6 adapted tomaintain ige framldglsin the desired relation to its sup Orts 3 durinthe several operations hereina. r describe `Carried within the machineframe 1, herein housed within its rear end, is a usual ino-- tor 7adapted to be controlled by the usual controller mechanism 8. Thearmature shaft 9 of this motor is longitudinally dis and carries on itsfront end a bevel pinion 10 which meshes constantly with a plurality ofspaced bevel gears 11 and 12 loosely mounted on a transverse shaft 13suitably journaled on the frame 1, as in supports 14, the gears 11 and12 being adapted to be o eratively connected to the shaft upon suita lemovement of a clutch member 15 splined to the shaft at 16 and adapted tobe operated by suitable clutch shippin mechanism including a clutchshipper 1 a rod 18, and a controllingmember 19 carried on the to of theframe 1. Thus, it will be observe that it is possible to rotate thetransverse shaft 13 in either direction by simply adJusting the clutchmember 15 to connect the desired bevel gears `11, 12 to thesbaft.

Operatively connected to the motor, herein through the shaft 13 is myimproved cut-v ter head rotating mec As shown, this mechanism includes aworm 20 on ons end of the shaft'l' and ymeshing with a worm gear 21 inturn fixed near the rear end of a longitudinally disposed shaft 22journaled in bearings 23 at'one'side of the frame 1. As shown, this;shaft 22 has xed to its front end a `pinion 24 meshing with a lar r gear25 disposed coaxially with tbe mor and in turn fixed to a coaxially uwsleeve 2 6 rotatable inl suitable spaced ings2'f formed in a rigidextension or sleeve 28 on the front of the frame 1, and herein castintegral therewith. As shown, the front end of the sleeve 28 is fixed toa transversely disposed, substantially tlat member 29, herein bifurcatedat its front and at and provided with lateral extensions 81 havinrigidly attached thereto, as bolts 82, a ransversely disposed flatcutter ar B3 disposed edgewise to the face and a rotary cutter chain 34movable throu a transverse chamber 84' in the member 29 n.

and ha a ble with the face w en on the front ha f of the bar. Thus, itwill be observed that when the shaft 13 is suitably connected I throughmovement of the controlling member 19, the head 29 and the cutter bar 33may be rotated by the motor 7 in either direetion.

operatively connected to tbeinotor, herein also through the shaft 13, isimproved mechanism for driving the cutter chain 34 while the cutter bar33 is so rotated. As shown, a inon 86 carried on the armature shaft 9,ind the bevel pinion 10, meshes with a larger r 37 carried on the rearend of a lon tu ally disposed shaft 38 journaled in rings 39 on theframe l and oppositely located with respect to the shaft 22. This ar 37is connectible with the shaft 38 gli h clutch mechanism including amovable clutch member 40 splined to the shaft 38 at 41 and operablethrough a clutch shipr 42, an upstanding rod 43, and a controlliiigmember 44 carried on the top of the easing 1. As shown. the shaft 38also cai-- ries on its front end a pinion 45 meshing with a lar r gear46, which is in turn fixed -to the en of a shaft 47 disposed coaxiailywith the sleeve 26 and iournaled therein in suitable bearings 4B, hereinof the roller type, located in the opposite ends thereof. The front endof this shaft 46 in turn has lixed thereto a bevel gear 49 disposed in achamber 50 in the member 29 and meshing with a larger bevel gear 50'fixed to e transverse shaft 51, which is in turn journaled in suitablebearings 52, herein of the roller type, carried on the member 29.Carried on one end of the shaft 51 is a sprocket 53 having a cooperatingchain 64, which in turn extends around a sprocket 55 on one end ofanother transverse shaft 56 iournaled in the extremity of the member 29and midway between the ends of the bar 3B. As shown. the opposite end ofthis shaft 56 is also provided with e sprocket 57 cari-ving a chain 58which in turn cooperates wit a sprocket 59 connected through a shaft 60with the chain driving sprocket 61 of the cutter chain 34. Thus it willbe observed that through control of the controlling member 44 the cutterchain may be operated during the rotation of the cutter bar, or thrownout of operation, as desired. o

Coo erating with the mechanism described, and also preferablyoperatively connected to the motor, is im roved mechanism for producinga relative ceding movement between the frame l and the truck duringcutting, and also during the hereinafter described feeding movement.This mechanism, as shown, includes a gear 62, constantly meshing with agear 63 Fixed to and rotatable with the bevel gear ll. .ls shown. thisgear 62 is freely rotatable on a transverse odset or sta red bits 35enshaft 64 disposed in front of the shaft 13 and journaled in suitablebearin 65 on the frame 1, and is connectible wit i that shaft throughsuitable clutch mechanism including a clutch member 66 splined at 67 tothe shaft, a clutch shipper 68, an u standin rod 69, and a controllingmember il) carrie on the topcf the frame l. This clutch mechanism isalso ada ted to connect. the shaft to a freely rotatab o worm r 71carried on the shaft and meshin with a worm 72 fixed to the shaft 22. twill also be noted that this -sha-ft 64 carries a gear 73 constantlymeshing with a pinion 'f4 on a lower transverse s aft 75 ioumaled insuitable bearings 76 beneath the frame 1 and disposed within the truckgirders 3. This shaft 75 in turn is also provided with pinions 77 on itsopposite ends mcs with longitudinally disposed racks 78 lix to the upperinslde flanges of the girders 3. Thus it will be observed that throughmanipulation of the clutch controlling member 70 to connect either theworm gear 71 or the r 62 to the shaft, and frame 1 may be feds owlyforward on the truck iis the cutter bar is rotated or fed more rapidlybackward thereon when the cutter bur is not rotating. Also it will benoted that the direction of movement ma be reversed or the movementinterrupte through manipulation of the clutch controlling member 19.

In the operation of my.iinproved construction, the machine is preferablycarried into the place to be cut, on its truck, until its cutter bar isclosely adjacent the face. 'I 'hen the truck is suitably xed, hereinrela.- tively to the roof by means of one or more adjustable jacks rT9engaging tlie roof and one or more jack su ports 80 referably formed onthe o posi e ends and' sides of the girders 3. A er this has been done.tlie n iotor is started, and tliroii h the manipulation of the clutchcontro ling member 19 and the clutch controlling member 44, the cutterbar and cutter chain are started ni operation. Then, through the controlof the c utcli controlling member 70, the frame l is fed forwardrelative to the face so that the cutter bits 35 on the front hlilf ofthe cutter chain 34 may continuously engage und cut the face as shown inFig. l, as the bar is rotilted and fed forward. As soon as the niachinehas reached a predetermined forward position relative to the truck, thelatter is then fed forward relative to the machine, herein also throughthe use of my improved feeding mechanism. This is preferably done whilethe cuttin are beingI loaded out, the machine then being shut down. B vthen removing the jacks 79 and placing the same between tho roof andother jack supports 8l formed on the op site sides and preferably :itthe reni' und o the machine frame l, the lutter may be locked inpositionso that when,

lll

omms through the control of the clutch controlling the that set forthabove.

member 70, the pinions 77 are rotated, truck will be caused-to feedforward relative to the machine on the new section of track. Obviously,as soon as the truck has been thus advanced, the jacks 79 may be againre laced in their cuttii positions and the cu ioperiition resuin In t euse of a machine constructed in accordaneewth my imgirovement, lt willbe observed that a cnt o cylindrical :cross aection is produced, tbediameter of the eut being the same asthe length of the bar. Un-

der many conditions this cut may satisfactorily serva as an entry.However, if it is desired to rovide a wider entry, the saine may bereadily widened by the use of n li'crf cutting machine 82 of any desiredtpm, preferably an nndercutter, as shown in ig.

the bar or cutter of the machine preferably being inserted subatcntiallyon the level with the bottom of the ent so that one or both side wallsthereof may undercut and shot to widen the entry as desired.

In Figs. 8 and 9 it will be noted, moreover, that I have illustrated amodified form of my invention adapted initial] to cut a wider entifyl',herein consisting of n ual mechanism of t e general type described aboveadapted to cut a plurality ofoverlap ing bores. Inasinuch as themechanism slliown in Figs. l to 6 has been specillcally described Aandsul:- stantially the same mechanism is used in this, embodiment of myinvention, a second detail description of that mechanism seemsunnecessar In this construction, however, it will e observed that aplurality of rotating members 29 are provided disposed at right anglesto each otherl and that operatively connected in each of these membersis a cntter bar 33 carrying a cutter chain 34, the construction being soarranged. that thc paths of the bars Aoverlii one oi'. the bars alwaysbeing at right ang es to the other and preferably, as herein, extendingclose to thc axis thereof. This dual mechanism is driven from the motorand controlled substantially as hereinabove described, save for the factthat the shaft 38 carries a r 83 on its front end meshing with an id err 84 and a driving ear 85, which rotates t e rotating shaft 47 o thelower head 29 shown in Fig. 8, while the idler alilgear B4 drives a gearB6 which rotates the aft 47 ofthe upper head shown in that ligure. Itwill also be observed thnt the shaft 22 carries a bevel pinion 8T on itsfront end which in turn meshes with a bevel r 89 carried on a transversesliat 90 suita ly journaled on the frame and carrying on its oppositeends worms 91 meshing with worm gears 92 driving the two sleeves 26.Obviously, the operation of this construction will be substantially thesame as that described above, save as above indicated, and the severalelements may be controlled through the saine controlling mechanism as Inthe use of in improved construction, it will be observed that a cuttingmechanism is produced in which the cutter bit act upon the face as thebar is rotated to cut the coal from the face through succeivoengagementof the bitii` with dierent portions of the face as the barsrotate and the cutter chain moves around thelist. It will also beobserved that due to my improved construction utilizinga standard cutterchain a rugged cutting mechanism` is provided whic as emonstrated in thesuccessful use of room and pillar and longwall machines, has heretoforeproved :un l suicient to out even the hardest coal. rough the provisionof my improved mechanism for mov- :ieif the cutting mechanismlongitudinally ative to the work, it will also be observed that meansare provided whereby the cutling mechanism may be conveniently moved toand from cutting position and fed forward continuously and slowly duringthe cuttin operation. Also, it will he noted that t rough the use ofthis mechanism and my improved controlli mechanism, the cuttingmechanism maynge withdrawn and returned to the face with the bar at anydesired angfe, as when it is desired to remove an obstruction such as usulphur ball or the like which it is im ossible otherwise to dislodge.Through t e revision of my imrovcd dual head mac e, attention is alsoirected to the fact that I have produced a mechanism which is enabledinitiaIl to pr0- duce a wider cut which may be ofyespeciul value inwider entries, and t e cutter bits of which also act oppositel upon theface in such a manner as to fac' 'tate the cutting of the saine and theremoval of obstructions therefrom.

Obviously, in the use of my im rovement any well known means may be utiized to remove the cuttings as the machine advances. As this means perse, however, does not form a part of m present invention I have notillustrated t e same more call herein thun to show u conve or 93 at oneside of the track. Also, it will evident that although in the use ofthis type of machine in entry work it is ordinarily not desirable tomove thc saine to another place `until an entry has been driven to itsouter limit, perhaps for a mile or more, this may be readilyaccomplished in other work or at that time by connecting any well knownmotor driven truck drivin mechanism, as for instancea rcinovab e chainund sprocket connection 94,

between the motor and the truck wheels 4 so' that when the bar or barshave been removed and the machine locked, as by a suitable lufg and pinconnection 95, the mechanism pre ernbly with the cutter bar or barsloaded mi top of the saine, may be transported under lll) on an axisextending its own power to a new It will of course also be understood tat under certain conditions the machine may be moved without irstremovin the bar or bars, the head then bei rotat into auch a position asto dispose e bar or bars above the level ot the These and other advant sof my improvement will, however, `be c early ap arent to those aln'lledin the art.

iile I have in this a plication ically described two einbodim' ents whimy invention may assume in practice, it is to be understood that thesame is not limitedto use in connection with these illustrativeembodiments but that the invention may be further modified and embodiedin various other forms without dcpartiig from its spirit or the scope ofthe appen ed claims.

What I claim as new and desire to secure by' Letters Patent is:

1. In a mining machine, a cutter bar supported on an axis intersectingit at a point substantiallv midway between its ends, and cutti mechanismmovable alongl said bar.

2. l a mining machine, a ro cutter liar supported at a point subetan lyinidway between its ends, and cutting mechan'ism movable along said bar.

tl.- In a mining machine, a lane cutter bar sup orted on an axis paralletoa line paralici) to the plane of the bar and intersecting its edge ata point between its ends, and cutting mechanism movable along said bar.

4. In a. mining machine, a rotary cutter bar supported from thedirection of its edge and at a point between its ends whereby onrotation of said bar its eigestrace spaced surfaces, and cutting m anismmovable alo said ba. mmm-n am a mining e, a. r ca element journaledmidway between its ends longitudinally of the machine, and cutting meansmovable from end to end thereo (i. In a minin machine, a cutter carryingmember movab e during cutting in a plane parallel to the face being cut,a cutter chain movable transversely of said member, means for drivingsaid cutter carrying element, and means operatively connected theretofor driving said chain.

7. In a mining machine, a cutter carrying element movable during cuttingin a plane parallel to the face being cut, a cutter chain movabletransversely of said element, and means for simultaneously operatingsaid element and driving said c ain.

S. In a mining machine, a cutter carrying member movable in a planeparallel to the face boing cut, a cutter chain movable transversely ofsaid member, and means for simultaneously operating said member, drivingsaid chain, and feeding said member toward the face.

9. In a mining machine, a cutter carrying neonata clement movable duringcutting in a plane parallel to the face bein cut, a cutter chain movabletransversely o said element, propelling mechanism therefor, a support,and means for feeding each of said elements relative to the other. 10.In a mininmachne, a cutter carrying element mova le in a plane parallelto the face being cut, a cutter chain movable transversely of saidelement, propelling mechanism therefor, a support, and means for holdingsaid propelling mechanism stationary and feeding said support relativethereto.

11. In n mining machine, cuttin means including a cutter carryingelement disposed transveiscly of the face, a cutter chain movabletransversely thereof, and means for movin said element in a transverselane pai'alle to the face being cut including a member fixed thereto ata point between the ends of said element.

12. In a mining machine, cutting means includin a cutter bar dtransversely of the ace, a cutter chain movable transversely thereof,and means for moving said bar in a transverseiplane parallel to the:face

being-cut including a member havi a biturcated portion lixed thereto ata. point be tween the ends of said element.

.13. In en entry driver, a rotary cutter bar disposable transversely ofan entry, a cutter chain movable transversely thereof, and means formoving said bar in a transverse plane parallel to the face duringcutting of the latter including a member having a` bifurcnted portionfixed to said bar and presenting a passageway for said chain. 14. I [n amining machine, cuttin means including a cutter carrying element isposedtransversely of the face` a cutter chain movable transversely thereof,means for moving said element in a plane arallel to a plane face durincutting of t e latter includin a member xed to said element at a. poinbetween the ends of said element, and means for reversing the movementof said element. l5. In a mining machine` cutting means including acutter carrying element disposed transversely of the face, a cutterchain movable transversely thereof, means for moving said element in aplane parallel to a plane face during cutting of the latter, including amember fixed to said element at a point between the ends of saidelement, a. su port, and means for movsaid member engitudinally thereofat diferent speeds.

18. In a mining machine, cutting means including a cutter carryingelement disposed transversely of the face, a. cutter chain movabletransversely thereof, means for moving said element transversely of theface being cut in a plane parallel to the latter including a memberfixed to said element at a point between the ends of said element, asupnected thereto, a transverse horizontal shaft, a worm secured to saidshaft and meshing with said worm and a. reversing mechanism between saidahaftland said motor, said reversing mechanism including a transverseshaft operatively connected to said' transverse shaft, rever gearsvcoaxial therewith, and means forternatively connecting said gears tosaid shaft. y

30. In a mining machine, awheeled truck frame having longitudinal Aideways thereon, a machine f rame slida ly mounted on said truck frame,a motor carried by said machine frame, cutting mechanism driven by saidmotor includin a cutter carr ing head rotatably mounte on said mac 'neframe for rotation upon a substantially horizontal axis and carrying andmoving during cutting, in a plane parallel to the working 4face, acutter har, andself-eontained mechanism driven hy'said motor for mov'said machine frame relative to said truck Ame.

31. In a mining machinea wheeled truck frame having longitudinal`ideways thereon, a machine frame slida 1y mounted on said truck frame,a. motor carried by said machine frame, cutting mechanism driven by saidmotor includiig n. cutter cari' ing head rotatably moun on aald .mac ine frame for rotation upon a auhstantiall horizontal axis and carryingand moving uring cutting, in a lane parallel to the working face, acutter ar, and self-contained mechamsm driven by said motor for movingsaid machine frame relative to said truck frame at different speeds inopposite directions.

32. In a nuning machine, a wheeled truck frame having longitudinallyextending guideways, a machine body slidably mounted in said gudways, a.motor in said body n cutter carry' head rotatably mounted on the forwardend of said body for rotation upon a substantially horizontal axis; andmechanisms driven by said motor for rotatin said head, for actuating thecutters on sai head, for movin the body relative toA the truck frame, anfor driving the wheels of said truck.

33. In a mining machine, a wheeled truck frame having longitudinallyextending guideways, a machine body slidably mounted in said guidcways,a motor in said body, a cutter carrying head rotatably mounted on theforward end of said body for rotation upon a substantial] horizontalaxis, and mechanisms driven y said motor for rotating said head inopposite directions, for movin the body relative to the truck frame atierent speeds in o pos'te directions1 and for driving the w eels of saidtruck.

In testimony whereof I ailix my si ature.

ROBERT C. OSG OD.

nected thereto, a transverse horizontal shaft, a worm secured to saidshaft and meshing with said worm ear, and a reversing mechanism betweensaid shaft and said motor, said reversing mechanism including atransverse shaft operatively connected to said transverse shaft, reversigears coaxial therewith, and means forliternatively connecting saidgears to said shaft.

30. In a mining machine, a wheeled truck frame having longitudinaluideways thereon, a machine frame Slida 1y mounted on said truck frame,a motor carried by said machine frame, cutting mechanism driven by saidmotor includin a cutter carr ing head rotatably mounte on said mac iineframe for rotation upon a substantially horizontal axis and carrying andmoving during cutting, in a plane parallel to the working face, a cutterbar, and self-contained mechanism driven by said motor for movin saidmachine frame relative to said truck rame.

31. In a mining machine, a wheeled truck frame having longitudinalguideways thereon, a machine frame slidably mounted on said truck frame,a motor carried by said machine frame, cutting mechanism driven by saidmotor ineludin a. cutter carr 'ing head rotatably mounte on Asaid macine frame for rotation upon a substantially hori- :rental axis andcarrying and moving during BESTAVMLABLE CGPY cutting, in a planeparallel to the Working face, a cutter bar, and self-contained mechanismdriven by said motor for moving said machine frame relative to saidtruck frame at diii'erent speeds in opposite directions.

32. In a mining machine, a wheeled truck frame having Ilongitudinallyextending guideways, a machine body slidably mounted in said guideways,a motor in said body, a cutter carrying head rotatably mounted on theforward end of said body for rotation upon a substantially horizontalaxis, and mechanisms driven by said motor for rotating said head, foractuating the cutters on said head, for moving the body relative to thetruck frame, and for driving the Wheels of said truck.

33. In a mining machine, a Wheeled truck frame having longitudinallyextending gudeways, a machine body slidably mounted in said guideways, amotor in said body, a cutter carrying head rotatably mounted on theforward end of said body for rotation upon a Vsubstantially horizontalaxis, and mechanisms driven by said motor for rotating said head inopposite directions, for moving the body relative to the truck frame atdifferent speeds in opposite direc tions, and for driving the Wheels ofsaid truck.

In testimony whereof I aiiix my signature.

ROBERT C. OSGOOD.

CERTIFICATE OF CORRECTION.

Patent No. l. 644, 943.

ROBERT C.

Granted October 11. 1927, to

OSGOOD.

lt is hereby certified that error appears in the printed specificationof the above numbered patent requiring corecton as follows: Page 2, line90, for

the werd "and" read "the"; page 3, line 70, for the word "bit" read"bits";

tions therein nd that the sind Letters Patent should be read with thesecorreo Ether the same may conform to the record of the case in thePatent Office.

Signed and sealed this 17th day of January, A. D. 1928.

Seal.

M. I. Moore,

Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,644,943. Granted October ll. 1927, to

ROBERT C. OSGOOD.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 2,line 90. for

the wml "and" read |'the"; page 3, line 70, for the word "bit" read"bits"; and that the said Letters Patent should be rend with thesecorrections therein thor the same may conform to the record of the casein the Patent Office.

Signed and sealed this 17th day of January, A. D. 1928.

M. J. Moore, Seal. Acting Commissioner of Patents.

